Camera Obscura, San Francisco

The Camera Obscura is a large-scale camera obscura, in the Lands End area of the Outer Richmond District in western San Francisco, California.
It is located near the Cliff House restaurant, perched on the headlands on the cliffs just north of Ocean Beach. The Camera and restaurant are currently owned by the National Park Service and are within the Golden Gate National Recreation Area. The Camera Obscura was added to the National Register of Historic Places in 2001, and is within the NPS Sutro Historic District. It is within the Golden Gate National Recreation Area, since being acquired by the National Park Service in 1977.
Cameras obscura, devices which project an image of the surroundings onto a surface using only existing exterior light sources, usually sunlight, have a long history in San Francisco. The first recorded reference to one in the city is from the 1860s in an attraction called Woodward's Gardens. A previous incarnation of the Cliff House was noted to have had a camera obscura on its fourth floor in 1896. This camera obscura was destroyed when the restaurant burned down in 1907.
When the third Cliff House reopened in 1937, the owner was approached by businessman Floyd Jennings with the idea of adding a camera obscura to the cliffs beside the restaurant. It was installed on the site in 1946 and has been in continuous operation since then.